Queen Gertrude tells Ophelia" An for you part, Ophelia, I do wish That your good beauties be the happy cause Of Hamlet’s wildness. So shall I hope your virtues Will bring him to his wonted way again, To both you honors. What is the queen saying to Ophelia?

This question seems to be incomplete. However, there is enough information to find the right answer.

The queen is saying that she wishes that Hamlet´s odd behavior is caused by him being lovesick because that would mean that he hasn´t become hopelessly insane, and he can still be cured.

Explanation:

In "Hamlet," by William Shakespeare, when Claudius orders Gertrude to leave, she agrees but tells this to  Ophelia before leaving, as an honest hope but also kind of like a warning, because they are all trying to understand Hamlet’s weird state of mind, and some people suspect she might be the reason behind it.